Step by Step Explanation: First find the area of the circle Area = πr^2 =3.14 x 16 50.24 cm^2 But here we need the area of the semicircle so 50.24/2 = 25.12 cm^2
Now we find the area of the triangle Area = 1/2bh = 1/2 x 8 x 4 16 cm^2
The area of the shaded region = 25.12-16 = 9.12 cm^2